Amorphous silicon radiation detectors

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868545

Street, Robert A ^[1]; Perez-Mendez, Victor ^[2]; Kaplan, Selig N ^[3]

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1. Palo Alto, CA
2. Berkeley, CA
3. El Cerrito, CA

Hydrogenated amorphous silicon radiation detector devices having enhanced signal are disclosed. Specifically provided are transversely oriented electrode layers and layered detector configurations of amorphous silicon, the structure of which allow high electric fields upon application of a bias thereby beneficially resulting in a reduction in noise from contact injection and an increase in signal including avalanche multiplication and gain of the signal produced by incoming high energy radiation. These enhanced radiation sensitive devices can be used as measuring and detection means for visible light, low energy photons and high energy ionizing particles such as electrons, x-rays, alpha particles, beta particles and gamma radiation. Particular utility of the device is disclosed for precision powder crystallography and biological identification.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: Regents of University of Calif. (Oakland, CA)
• Patent Number(s): US 5164809
• OSTI ID: 868545
• Country of Publication: United States
• Language: English

Related Subjects

amorphous
silicon
radiation
detectors
hydrogenated
detector
devices
enhanced
signal
disclosed
specifically
provided
transversely
oriented
electrode
layers
layered
configurations
structure
allow
electric
fields
application
bias
beneficially
resulting
reduction
noise
contact
injection
increase
including
avalanche
multiplication
produced
incoming
energy
sensitive
measuring
detection
means
visible
light
photons
ionizing
particles
electrons
x-rays
alpha
beta
gamma
particular
utility
device
precision
powder
crystallography
biological
identification
energy radiation
detection means
electric field
amorphous silicon
hydrogenated amorphous
visible light
radiation detector
gamma radiation
alpha particle
radiation detectors
alpha particles
electric fields
signal produced
beta particles
particular utility
radiation sensitive
silicon radiation
precision powder
signal including
enhanced radiation
energy photon
energy photons
sensitive device
specifically provided
energy ionizing
electrode layers
electrode layer
transversely oriented
beta particle
detector device
ionizing particle
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